GFB - Inlet Flange Adapter - Blow-Off Valve Subaru WRX / STI bmw-1-series-f7x---24----m135---300-esi3215375 They are supplied as a

They are supplied as a direct replacement for the OEM filters

Suitable for: B5/C5 Audi 2

the intercooler reduces Intake temperatures by up to 40 degrees Fahrenheit

4" conical air filter with CFD-optimised 4-layer silicone inlet tube for improved throttle response

The CAD design and flow-optimised construction enhance performance and ensure lower back pressure

GFB - Inlet Flange Adapter - Blow-Off Valve Subaru WRX / STI bmw-1-series-f7x---24----m135---300-esi3215375 They are supplied as aThe GFB replacement flange is designed for use with the T9003, T9103, T9203 and T9503 blow off valves. This flange is specifically designed to fit Subaru WRX STI models with a triangular flange. It is a high quality replacement flange, manufactured in Australia, with a strong focus on performance and durability, reflecting Go Fast Bits commitment to quality. Replacement flange for Subaru WRX STI models with a triangular flange Suitable for the GFB